{ "query": "address", "filters": { "category": null, "network": null, "max_price_usdc": null, "verified_only": false }, "total": 5, "count": 5, "results": [ { "id": "geocoding-api", "slug": "geocoding-api", "name": "Geocoding & Reverse Geocoding API", "provider": { "slug": "apistead-labs", "name": "APIStead Labs", "verified": true }, "category": "Weather & Geospatial", "tagline": "Address to coordinates, coordinates to address.", "description": "Forward and reverse geocoding with normalized address components, confidence and a stable place ID.", "agent_summary": "Convert a free-text address or place into coordinates and a normalised address, or reverse geocode coordinates.", "scope": "Does not validate postal deliverability or rooftop accuracy. Uses OpenStreetMap data and is not a legal boundary source.", "intent_phrases": [ "geocode an address", "turn coordinates into an address", "find latitude and longitude for a place", "normalise an address for an agent" ], "faqs": [], "code_examples": [], "price": { "min_usdc": 0.001, "max_usdc": 0.001, "unit": "per_call" }, "payment": { "protocol": "x402", "protocol_version": 2, "network": "eip155:8453", "network_name": "Base", "asset": "USDC", "price_min_usdc": 0.001, "price_max_usdc": 0.001, "unit": "per_call", "pay_to": "0x2E9804240E493DD8daeBa4F341a5086b92cde235", "authoritative_source": "402_challenge" }, "networks": [ "base" ], "primary_network": "base", "verification": "verified", "verification_detail": { "state": "verified", "verified_routes": 2, "total_routes": 2, "last_verified_at": "2026-11-13T13:52:22.884Z", "receipt_url": "https://basescan.org/tx/0x895d6612a320ee74cb276d1ecd31da3768f208d4d4919c4d21ea67b07e3b9cf0" }, "verified_routes": 2, "total_routes": 2, "reliability": { "score": 87, "band": "caution", "uptime30d": 87, "lastCheckedAt": "2026-11-14T04:35:10.718Z" }, "last_verified_at": "2026-11-13T13:52:22.884Z", "receipt_url": "https://basescan.org/tx/0x895d6612a320ee74cb276d1ecd31da3768f208d4d4919c4d21ea67b07e3b9cf0", "base_url": "https://apistead.qd.je/api/v1", "mcp_endpoint": "https://apistead.qd.je/mcp", "docs_url": "https://apistead.qd.je/api", "tags": [ "geocoding", "maps", "address", "places", "coordinates", "osm" ], "use_cases": [ "Convert an address to coordinates for a map", "Normalize a user-provided location", "Resolve coordinates from a photo or device" ], "links": { "docs": "https://apistead.qd.je/api", "json": "https://x402.apistead.qd.je/api/apis/geocoding-api", "markdown": "https://x402.apistead.qd.je/api/apis/geocoding-api/md", "routes": "https://x402.apistead.qd.je/agent/routes?id=geocoding-api", "receipts": "https://x402.apistead.qd.je/agent/receipts?id=geocoding-api", "api_reference": "https://x402.apistead.qd.je/api", "mcp_guide": "https://x402.apistead.qd.je/mcp-docs", "skill": "https://x402.apistead.qd.je/skill", "openapi": "https://x402.apistead.qd.je/openapi.json" }, "demo": true }, { "id": "ip-geolocation-api", "slug": "ip-geolocation-api", "name": "IP Geolocation API", "provider": { "slug": "apistead-labs", "name": "APIStead Labs", "verified": true }, "category": "Address & Location", "tagline": "Turn an IP into a place and network.", "description": "IP geolocation with country, region, city, coordinates, timezone and ASN. Works for public IPv4 and IPv6 addresses.", "agent_summary": "Turn a public IP address into approximate country, region, city, timezone, ASN and organisation data.", "scope": "Approximate location only. Not for identity, precise location, private IPs or fraud decisions without another signal.", "intent_phrases": [ "look up an IP address", "find the country and city for an IP", "get the ASN for an IP", "enrich a request with IP location" ], "faqs": [], "code_examples": [], "price": { "min_usdc": 0.001, "max_usdc": 0.001, "unit": "per_call" }, "payment": { "protocol": "x402", "protocol_version": 2, "network": "eip155:8453", "network_name": "Base", "asset": "USDC", "price_min_usdc": 0.001, "price_max_usdc": 0.001, "unit": "per_call", "pay_to": "0x2E9804240E493DD8daeBa4F341a5086b92cde235", "authoritative_source": "402_challenge" }, "networks": [ "base" ], "primary_network": "base", "verification": "verified", "verification_detail": { "state": "verified", "verified_routes": 2, "total_routes": 2, "last_verified_at": "2026-11-13T13:52:21.457Z", "receipt_url": "https://basescan.org/tx/0x638e71f65c2bcc4874eb8b4eb9fde19d59d9df33c94b12c95ead4913e1522d44" }, "verified_routes": 2, "total_routes": 2, "reliability": { "score": 87, "band": "caution", "uptime30d": 86.5, "lastCheckedAt": "2026-11-14T04:35:10.717Z" }, "last_verified_at": "2026-11-13T13:52:21.457Z", "receipt_url": "https://basescan.org/tx/0x638e71f65c2bcc4874eb8b4eb9fde19d59d9df33c94b12c95ead4913e1522d44", "base_url": "https://apistead.qd.je/api/v1", "mcp_endpoint": "https://apistead.qd.je/mcp", "docs_url": "https://apistead.qd.je/api", "tags": [ "ip", "geolocation", "asn", "fraud", "localization", "network" ], "use_cases": [ "Localize a request by the caller's IP", "Add an IP risk signal to a fraud workflow", "Resolve an IP to a city and timezone" ], "links": { "docs": "https://apistead.qd.je/api", "json": "https://x402.apistead.qd.je/api/apis/ip-geolocation-api", "markdown": "https://x402.apistead.qd.je/api/apis/ip-geolocation-api/md", "routes": "https://x402.apistead.qd.je/agent/routes?id=ip-geolocation-api", "receipts": "https://x402.apistead.qd.je/agent/receipts?id=ip-geolocation-api", "api_reference": "https://x402.apistead.qd.je/api", "mcp_guide": "https://x402.apistead.qd.je/mcp-docs", "skill": "https://x402.apistead.qd.je/skill", "openapi": "https://x402.apistead.qd.je/openapi.json" }, "demo": true }, { "id": "us-zip-code-api", "slug": "us-zip-code-api", "name": "US ZIP Code API", "provider": { "slug": "apistead-labs", "name": "APIStead Labs", "verified": true }, "category": "Address & Location", "tagline": "Validate and enrich any US ZIP code.", "description": "US ZIP code lookup with city, state, coordinates and distance between ZIP centroids. Stable JSON for address, delivery and property workflows.", "agent_summary": "Resolve a US ZIP code to a city, state and coordinates, or measure the distance between two ZIP centroids.", "scope": "US ZIP codes only. Does not validate street addresses, ZIP+4 delivery points or international postal codes.", "intent_phrases": [ "look up a US ZIP code", "get city and state for a ZIP", "calculate distance between ZIP codes", "validate a US ZIP before delivery" ], "faqs": [], "code_examples": [], "price": { "min_usdc": 0.001, "max_usdc": 0.002, "unit": "per_call" }, "payment": { "protocol": "x402", "protocol_version": 2, "network": "eip155:8453", "network_name": "Base", "asset": "USDC", "price_min_usdc": 0.001, "price_max_usdc": 0.002, "unit": "per_call", "pay_to": "0x2E9804240E493DD8daeBa4F341a5086b92cde235", "authoritative_source": "402_challenge" }, "networks": [ "base" ], "primary_network": "base", "verification": "verified", "verification_detail": { "state": "verified", "verified_routes": 2, "total_routes": 2, "last_verified_at": "2026-11-13T13:52:19.855Z", "receipt_url": "https://basescan.org/tx/0x73b29cce8aa1258c1fbb2e89281e070df0456f00245e5f17cb9c2be161b3c69e" }, "verified_routes": 2, "total_routes": 2, "reliability": { "score": 87, "band": "caution", "uptime30d": 87, "lastCheckedAt": "2026-11-14T04:35:10.714Z" }, "last_verified_at": "2026-11-13T13:52:19.855Z", "receipt_url": "https://basescan.org/tx/0x73b29cce8aa1258c1fbb2e89281e070df0456f00245e5f17cb9c2be161b3c69e", "base_url": "https://apistead.qd.je/api/v1", "mcp_endpoint": "https://apistead.qd.je/mcp", "docs_url": "https://apistead.qd.je/api", "tags": [ "us", "zip", "postal-code", "address", "geocoding", "delivery" ], "use_cases": [ "Validate a US ZIP before a delivery or address lookup", "Enrich a lead record with city, state and coordinates", "Calculate distance between two ZIP centroids" ], "links": { "docs": "https://apistead.qd.je/api", "json": "https://x402.apistead.qd.je/api/apis/us-zip-code-api", "markdown": "https://x402.apistead.qd.je/api/apis/us-zip-code-api/md", "routes": "https://x402.apistead.qd.je/agent/routes?id=us-zip-code-api", "receipts": "https://x402.apistead.qd.je/agent/receipts?id=us-zip-code-api", "api_reference": "https://x402.apistead.qd.je/api", "mcp_guide": "https://x402.apistead.qd.je/mcp-docs", "skill": "https://x402.apistead.qd.je/skill", "openapi": "https://x402.apistead.qd.je/openapi.json" }, "demo": true }, { "id": "email-verification-api", "slug": "email-verification-api", "name": "Email Verification API", "provider": { "slug": "apistead-labs", "name": "APIStead Labs", "verified": true }, "category": "Verification", "tagline": "Real-time email verification for AI agents, with a quality score.", "description": "Real-time syntax, domain, MX, disposable, role and typo checks with a quality score. x402 payments, no API key, no SMTP probe and no message sent.", "agent_summary": "Check email syntax, domain and MX records before an agent sends a signup, invoice or outreach message.", "scope": "Domain-level check only. Does not prove the mailbox exists, send a test message or perform SMTP probing. Disposable and role lists are curated samples, not a licensed feed.", "intent_phrases": [ "validate an email address", "check if an email domain can receive mail", "screen an email before signup", "detect a disposable email domain" ], "faqs": [ { "answer": "No. It verifies the domain and its mail route. It does not use SMTP, does not send a message, and returns mailbox_checked: false. A deliverable verdict means the domain can accept mail, not that the specific inbox exists.", "question": "Does this API confirm that a mailbox exists?" }, { "answer": "The quality score from 0 to 100 combines syntax, MX, implicit MX, disposable-domain, role-account and typo signals. It is a confidence indicator, not a guarantee of delivery.", "question": "What does the quality score mean?" }, { "answer": "Yes. The API performs the domain and MX checks during the request and returns a structured result in one call. It does not run a slow SMTP mailbox probe.", "question": "Is this a real-time API?" }, { "answer": "No. The API uses DNS only. It does not connect to SMTP port 25, does not send mail and does not store the email address.", "question": "Does it send email or use SMTP?" }, { "answer": "A call costs $0.001 USDC on Base. The agent reads the x402 402 challenge, pays the provider wallet directly and retries. There is no API key or subscription.", "question": "How much does a call cost and how do agents pay?" }, { "answer": "A null MX record tells senders that the domain does not accept email. The API marks that domain as undeliverable instead of treating the missing mailbox as a temporary failure.", "question": "What is a null MX record?" } ], "code_examples": [], "price": { "min_usdc": 0.001, "max_usdc": 0.001, "unit": "per_call" }, "payment": { "protocol": "x402", "protocol_version": 2, "network": "eip155:8453", "network_name": "Base", "asset": "USDC", "price_min_usdc": 0.001, "price_max_usdc": 0.001, "unit": "per_call", "pay_to": "0x2E9804240E493DD8daeBa4F341a5086b92cde235", "authoritative_source": "402_challenge" }, "networks": [ "base" ], "primary_network": "base", "verification": "verified", "verification_detail": { "state": "verified", "verified_routes": 1, "total_routes": 1, "last_verified_at": "2026-11-13T13:52:26.507Z", "receipt_url": "https://basescan.org/tx/0x921a420d189953841232d7d6771f1352b34a5bec27ce76c4701aa6b958755a9e" }, "verified_routes": 1, "total_routes": 1, "reliability": { "score": 88, "band": "caution", "uptime30d": 88, "lastCheckedAt": "2026-11-14T04:35:10.709Z" }, "last_verified_at": "2026-11-13T13:52:26.507Z", "receipt_url": "https://basescan.org/tx/0x921a420d189953841232d7d6771f1352b34a5bec27ce76c4701aa6b958755a9e", "base_url": "https://apistead.qd.je/api/v1", "mcp_endpoint": "https://apistead.qd.je/mcp", "docs_url": "https://apistead.qd.je/api", "tags": [ "email", "verification", "deliverability", "mx", "validation" ], "use_cases": [ "Clean a signup list before sending", "Block disposable addresses and role accounts in a workflow", "Catch common domain typos before they become bounces", "Reduce bounce rates for an agent-driven campaign" ], "links": { "docs": "https://apistead.qd.je/api", "json": "https://x402.apistead.qd.je/api/apis/email-verification-api", "markdown": "https://x402.apistead.qd.je/api/apis/email-verification-api/md", "routes": "https://x402.apistead.qd.je/agent/routes?id=email-verification-api", "receipts": "https://x402.apistead.qd.je/agent/receipts?id=email-verification-api", "api_reference": "https://x402.apistead.qd.je/api", "mcp_guide": "https://x402.apistead.qd.je/mcp-docs", "skill": "https://x402.apistead.qd.je/skill", "openapi": "https://x402.apistead.qd.je/openapi.json" }, "demo": true }, { "id": "us-building-permits-api", "slug": "us-building-permits-api", "name": "US Building Permits API", "provider": { "slug": "apistead-labs", "name": "APIStead Labs", "verified": true }, "category": "Public Records", "tagline": "Permit history for US properties and contractors.", "description": "Search building permits by city, address or keyword. Returns permit type, status, dates and contractor evidence.", "agent_summary": "Look up sample US building permit records by city and optional search text.", "scope": "Sample cities only. Not a complete national permit feed, legal verification or construction approval.", "intent_phrases": [ "look up building permits", "check permit activity for an address", "find construction permits in a city", "research a property permit history" ], "faqs": [], "code_examples": [], "price": { "min_usdc": 0.01, "max_usdc": 0.01, "unit": "per_call" }, "payment": { "protocol": "x402", "protocol_version": 2, "network": "eip155:8453", "network_name": "Base", "asset": "USDC", "price_min_usdc": 0.01, "price_max_usdc": 0.01, "unit": "per_call", "pay_to": "0x2E9804240E493DD8daeBa4F341a5086b92cde235", "authoritative_source": "402_challenge" }, "networks": [ "base" ], "primary_network": "base", "verification": "verified", "verification_detail": { "state": "verified", "verified_routes": 1, "total_routes": 1, "last_verified_at": "2026-11-13T13:52:07.908Z", "receipt_url": "https://basescan.org/tx/0x87fa207fe48e9a46f86e723adfa2a145d500c6e18274ebb7ff833f22e905211e" }, "verified_routes": 1, "total_routes": 1, "reliability": { "score": 85, "band": "caution", "uptime30d": 85, "lastCheckedAt": "2026-11-14T04:35:10.713Z" }, "last_verified_at": "2026-11-13T13:52:07.908Z", "receipt_url": "https://basescan.org/tx/0x87fa207fe48e9a46f86e723adfa2a145d500c6e18274ebb7ff833f22e905211e", "base_url": "https://apistead.qd.je/api/v1", "mcp_endpoint": "https://apistead.qd.je/mcp", "docs_url": "https://apistead.qd.je/api", "tags": [ "permits", "property", "construction", "public-records", "us" ], "use_cases": [ "Check permit history before a property purchase", "Find roofing or solar permit activity", "Verify a contractor's recent permits" ], "links": { "docs": "https://apistead.qd.je/api", "json": "https://x402.apistead.qd.je/api/apis/us-building-permits-api", "markdown": "https://x402.apistead.qd.je/api/apis/us-building-permits-api/md", "routes": "https://x402.apistead.qd.je/agent/routes?id=us-building-permits-api", "receipts": "https://x402.apistead.qd.je/agent/receipts?id=us-building-permits-api", "api_reference": "https://x402.apistead.qd.je/api", "mcp_guide": "https://x402.apistead.qd.je/mcp-docs", "skill": "https://x402.apistead.qd.je/skill", "openapi": "https://x402.apistead.qd.je/openapi.json" }, "demo": true } ], "discovery": { "free": true, "payment": "Pay the API's own x402 route. APIStead never charges for discovery.", "marketplace": { "accepting_listings": false, "first_party_only": true }, "docs": "https://x402.apistead.qd.je/api", "mcp": "https://x402.apistead.qd.je/mcp" }, "generated_at": "2026-11-14T04:35:39.482Z" }